全球定位系统2024，Vol.49Issue(6)：8-13,6.DOI:10.12265/j.gnss.2024124
电力行业基于载噪比的卫星导航欺骗检测技术
Satellite navigation deception detection technology based on carrier to noise ratio in the electricity industry
田静 1谭论语 1张榆喻 1杨馨 1刘文祥1
作者信息
- 1. 国防科技大学电子科学学院,长沙 410000
- 折叠
摘要
Abstract
Due to the public disclosure of civil navigation signals,they are susceptible to malicious deception and interference.Once the timing system of the power industry is deceived,the national power system will find it difficult to operate normally.In response to the current situation of malicious deception faced by the BeiDou navigation system and the high complexity of existing anti deception detection technologies that are difficult to widely apply,this paper establishes a binary hypothesis test and proposes time difference and inter satellite difference deception detection methods based on carrier to noise ratio(CNR).As the CNR of deception signals is generally higher than that of real signals,this paper uses time difference to determine whether the CNR of satellite signals has abnormal changes,in order to detect high-power deception signals.In addition,since the CNR of deception signals transmitted by a single antenna is the same,while there are differences in the inter satellite CNR of real BeiDou satellite signals,this paper uses the CNR difference between different satellite signals as zero to detect the existence of deception signals transmitted by the same deception source.By processing and analyzing the data collected from the experimental platform,the time difference and inter satellite difference deception detection algorithms based on CNR were successfully validated.关键词
电力行业/欺骗检测/载噪比(CNR)/差分/北斗卫星导航系统(BDS)Key words
electricity industry/spoofing detection/carrier to noise ratio/differential/BeiDou satellite navigation system分类
天文与地球科学引用本文复制引用
田静,谭论语,张榆喻,杨馨,刘文祥..电力行业基于载噪比的卫星导航欺骗检测技术[J].全球定位系统,2024,49(6):8-13,6.
